Shuttle guard for looms



Aprll 14, 1925.

P. NATHANSON ET AL SHUTTLE GUARD FOR LOOMS Filed April 16, 1924 Patented Apr. 14, 1925.

UNITED STATES 1,533,707 PATENT. OFFICE. i

PHILIP NATHANSON ANI) JACOB SONIAG, OF ALLENTOWN, PENNSYLVANIA.

SHUTTLE GUARD For. LOOMS. y

Application fi1ed Apri1 16, 1924. Serial No. 706,812.

To all, 1071 0m it, may concern:

Be it known that we, PHILIP Nnrna vsoN and JACOB, SONTAG, both citizens of the United States, and residents of Allentown,

in the county of Lehigh and State of Pennsylvania, have invented certain new and use- :ful Improvements in Shuttle Guards for Looms, of which the following is aspecili cation sufficient to enable those skilled in the art to which the invention appcrtains to utilize the same.

Our improvements relate to looms generally, but especially to those used in the fecting its reciprocatory across the baton,

the free moving shuttle being easily deflected from its proper alignment, as by the slightest impediment falling into the silk in front of the harness, or a broken end lying crosswise of the silk, or for any cause that will make the shuttle fly upward and off the loom, in which case the weight and mo1nentum of the travelling shuttle may result in serious injury.

For instance, should a shuttle so deflected out of its proper course strike an adjoining loom it is apt to smash the reed thereof, or pniuzturc holes in the cloth, or be itself destroyed by contact with extraneous objects,

so that it not only involves risk of personal safety to those in proximity but involves also an item of expense and loss.

These difficulties and danger we obviate by our improved design of shuttle guard a in each case formed with a lateral gulde or our invention consisting in the specific construction, combination and arrangement of parts and appurtenances described and claimed, whereby these and other advantageous results are attained, all as hereinafter fully set forth.

In the accompanying drawings we illustrate a practical embodiment of the essential features of our invention in combination with a silk loom of a type well known in the art, although we do not limit ourselves to the identical form and construction of the component parts of our shuttle guard shown herein by way of exempllhcation, since mod- As is well known in the "the guard raised;

ifications in minor details, and equivalent mechanical expedients, may be resorted to with like results and without departing from the spirit and intent of our invention in this respect. i i

With this understanding Fig. 1, represents a front view, broken away medially, of our improved shuttle guard and adjacent parts of the 100111 to which applied;

Fig. 2, is an elevation, upon a larger scale, of the left end of the reed cap and guard, the latter being lowered into operative position Fig. 3, isa front elevation of the left end of the reed cap,

shown in Fig. 2;

Fig. 4, is a view like unto Fig. 2, showing the guard raised; "1

' Fig. 5,is a view like unto Fig. 3, showing guard, -etc., in the position Fig. 6, is a top View of the parts shown in Fig. 4;

F ig. 7, is a perspective'view thereof.

In the drawings R, represents the usual raceway or baton over which the shuttle S, 1s 'reciprocated in a manner and by means well, known in the art,B, B, being the shuttleboxes of customary construction and function. K, is the usual reed cap or bar,

on which our shuttle guard G, is mounted by means of brackets 7c, 70, positioned near the extremities of said reed cap K, as shown more particularly in Fig. 1, of the drawings, these brackets l7, 7;, are n'eferably, although not necessarily, made of sheet metal of suit able thickness bent into shape, each with a base flange 71:, for attachment to the reed cap K, and with a bearing plate 73 projecting substantially at right angles to the said base flange 72, said bearing plate L being with our shuttle guard, considering the de- Vice in a unltary sense, in that they insure the entrance of the shuttle S, into said adjacent boxes B, at the termination of each reciprocatory stroke of the shuttle S, over the baton R.

The guard bars 9, 9, preferably three in lUU number, are rigidly secured at their extremitiesito slide members g, g, which; latterare mounted onthe bearing plates ,10 of the brackets 70, by means which admit of theiraising and lowering ofthe shuttle guard Gr, within prescribed limits. This mobile mounting of the shuttle guard -G,imay'be efiected by resort to various mechanical ex-' pedlents, equivalents ofthe specific-construetion and arrangement of parts shown in the drawings, in which the slide members or end plates g, 9 orthe guard'G, are formed with slots g g forithe accommodation of the headed 'retainingpins is it, which conline the said end pieces g, g, ofthe guard G, to the brackets 70, it, While admitting of their adjustmentthereon. In thiseonnection it is obvious, i01- instance,'that an alternative arrangement of guard mount might be resorted to with like results, in that the bearing plates 70 70 mightbe slotted, and the engaging retaining pins might be positioned on the end pieces or-slides g, g, of the guard G. In either case the slots '9 would be provided each with a lateral offset, notch, or shoulder 9*, (see Fig. 2) forenga'gement with the lower retaining pin is when the guard G, is elevated -in position as shown in Figs. t and 5,it being understood that the slide members 9., are mclined in position substantially assh'own, so that the Weight of the guard G, will tend to maintain this engagement between the notch 9*, and the retaining.- pin 70*,while the guard is elevated, and at rest lnthat position, but

will notv withstand the vibration and jar incidental to the operation of the shuttle mechanism which will cause disengagement oftlns gravity catch device and allow theguardG, to descend automatically into op erative position in so far as. the reciprocatory path ot the shuttleis concerned, when the loo-m is'working, in which normal position of the guard G, its lowerbar or edge extends approximately an inch or so from the cloth weave, thereby efi'ectually screening the shuttle and confining it against lateral displacement from its prescribed course. Nevertheless, when the loom is at rest, .the operator can raise theguard Gr, into'the locked position above set forth if he desires access temporarily to the rear thereof; and-the operatorrneed-inot neces the loom, and its delivery to the shuttle boxes is assured that-the guard when raised to give access to partsbeyond will stay up withoutb'eing held manually so long as the loom isat rest; and that-theloo-m can in :no case be left unguardedduring operation, since the raised guard 1 will automatically return to normal position as required, thus eliminating the need of attention by tlieop- 'erator to that extent.

W hat'weclaim as our "invention and desire to secure'byLetters Patent, is

1. A shuttle guard of -the character des ignated, formedwith a plurality oi longitudinal bars rigidlyiattached to endinembers sli'dably mounted on brackets secured to the reed'cap and all movable in unison, sa-idbrackets, and gravity latch means in terposed between said brackets and said slidablemembers of the guard, one side of the'guard beingcapable ofbeing raised independently o-i 'theother side, substantially inthe manner and forthe purpose set 'forthi 2. A shuttle guard oi the character designated, formed with 'aplurality'of:lo1igi tudinal bars rigidly attached to end members'slidably mounted on brackets secured to the reed cap and'all mova-blein unison, said brackets formed with rigid shuttle=defiecting extensions, and gravity latch means connecting said brackets and said slidable end members oi the guard, said guard being constructed to terminate substantially below the upper edge of the reedbar, wheir-in raised position, substantiallyin the manner and for the purpose set forth.

PHILIP NATHANSON. JACOB SONTAG. 

